Vistrow Voice vs Ravan (Agni)
A practical comparison for teams evaluating multi-engine voice agent platforms and AI voice agents for real customer calls.
- No signup needed
- 5 free calls
- 130+ languages
Call answered by ArthaTranscript and summary savedWhen Ravan (Agni) fits
Teams that want to pick between many packaged speech engines and voices themselves and are comfortable tuning each one for their calls.
The tradeoff
More engines and options also means more combinations to test. Whichever platform you choose, check how the agent handles Indian callers, dates, numbers and transfers on real phone audio.
When Vistrow fits
Use this page if you are shortlisting voice agent platforms for Indian callers and want a checklist of what to test, with what Vistrow Voice does for each point today.
Multi-engine voice agent platforms and Vistrow Voice, point by point.
| Decision point | Typical multi-engine voice agent platforms approach | Vistrow Voice |
|---|---|---|
| How it sounds | Depends on the engine and voice you choose for each agent. | Sounds like a real person, not a robot: it talks the way your customer talks, so simple everyday words get short, plain replies and formal callers get formal ones. |
| Language switching | Varies by engine; worth testing with your own callers. | Switches the language it speaks mid-call when the caller does, with a separate welcome line for each language the agent speaks. |
| Dates and caller details | Often left to the language model to interpret. | Spoken dates like “day after tomorrow” are worked out by code, and phone numbers, pincodes, OTPs, amounts and emails are checked before the agent repeats or uses them. |
| Knowledge base | Commonly searched as a tool on each question. | Short knowledge bases are answered from memory (about 1 s faster on knowledge answers in our tests) and long ones are searched; website pages refresh on a schedule, and a test panel shows the answer before callers hear it. |
| Testing before launch | Test calls and manual review. | “Check my agent” finds setup mistakes in one click, and AI-judged call tests play a caller persona against your real agent and quote the lines behind each pass or fail. |
| Transfers | Transfer to a number, usually with hours and hold music. | Several teams with their own transfer hours, hold music while a colleague’s phone rings, your own connecting and failure lines, and an honest callback offer on website calls. |
| Call records | Transcripts and custom fields. | A timeline of every call, recording, transcript, choice fields, “this call succeeded when…” and a success rate, plus a change history that restores earlier agent settings in one click. |
| Integrations | CRM and calendar connectors. | ArthaLeads, Zoho, Google Sheets, Slack, GoHighLevel, Cal.com and signed webhooks with retries and a delivery log, plus a built-in CRM and calendar. |
| Getting started | Plans and setup terms vary; ask for current terms. | The dashboard copilot can draft a whole agent from one description for you to preview, save or undo. No setup fee. |
The left column describes the multi-engine voice agent platforms category in general terms, not Ravan (Agni)’s current product. Vendor products change, so this page is a buyer checklist, not a spec sheet. Verify current features directly with each vendor before you decide.
Match the tool to the job, not the brand.
Sounds like a real person, not a robot
Callers hang up on an agent that sounds scripted. Listen to a full call, not a sample clip: the pauses, how it handles an interruption, and whether it repeats a number back correctly.
Talks the way your customer talks
A caller who uses simple, everyday words should hear the same back, not textbook Hindi. Test with real callers from your market, including mixed Hindi-English and a mid-call language change.
Many engines or one tuned setup
A long engine list gives choice, but every combination needs its own testing. Decide whether you want to choose and tune engines yourself or start from a setup already tuned for Indian calls.
The parts of a call it handles for you.
Languages
More than 130 languages, including 10 Indian languages and Hinglish, switching with the caller mid-call.
See the languagesPhone and website
Inbound phone calls through a connected number, plus a call widget that talks to website visitors in the browser.
The website widgetApproved answers
A knowledge base with strict mode, so the agent quotes your material instead of improvising.
The knowledge baseA finished record
Transcript, summary, captured lead fields, optional recording and CRM or webhook delivery status for every call.
Integrations
Hear it on a real call before you decide.
Artha answers in your language, works on your number and your website, and leaves a record of every call.
Consent and recording, your call
Require spoken consent, switch recording on or off and set how long records are kept.
130+ languages
Hindi, Hinglish and 9 other Indian languages included. The agent follows the caller.
Phone and website
The same agent can answer your number and the call button on your site.
Every call logged
A transcript for every call, plus the lead fields captured and the audio if recording is on.
Ask these before you shortlist, including us.
- How are spoken dates and numbers handled: by the model, or checked in code?
- Can I run test calls with a caller persona and see why each check passed or failed?
- What happens on a transfer when nobody picks up, and what does a website caller hear?
- What does every call record contain, and can I see who changed an agent and undo it?
- Is there a setup fee, and what is included before the first live call?
Run the same real-call test before choosing.
First response latency
Interruption handling
Indian names and numbers
CRM payload quality
Try it next to what you use today.
Moving to an AI voice agent does not need a cut-over. Run it alongside your current setup on one narrow slice of calls, and keep the old path as fallback until the transcripts convince you.
- 1Step 1
Write down the five call types you want handled and the record your team needs after each.
- 2Step 2
Build the same agent on each platform, in your languages, with the same knowledge.
- 3Step 3
Run identical test calls: a date, a phone number, a transfer, a language change and an unknown question.
- 4Step 4
Compare the call records and the time each platform took to get a working agent.
The questions buyers ask first.
What does it cost?
Usage is measured in minutes of conversation, and the voice and model you choose change how quickly minutes are used. Telephony is billed separately by the provider you connect.
How pricing works
How much setup is it?
No code. Set the persona, prompt, voice and language, test it in the browser, then publish. Later changes apply from the next call.
Create an agent
Can a person take over?
On phone calls the agent can dial in the colleague you set and stay on until they answer. Website calls take a callback request instead.
Functions and transferWhat if it does not know?
With strict mode on, it quotes your approved answers and says it will check with the team when something is not covered, rather than guessing.
Knowledge baseStill deciding? Ask Artha yourself.
- No signup needed
- 5 free calls
- 130+ languages
Questions, answered.
The things people ask us most. If yours isn’t here, talk to us and a person will reply.
Ask us directlyNo. We make Vistrow Voice. The left column describes what to check on any multi-engine voice agent platform, not Ravan’s current product. Products change, so confirm current features and terms with each vendor.
Test both with your own callers. Vistrow Voice is built around Indian calls: it talks the way your customer talks, checks numbers and dates in code, and switches language when the caller does.
No. There is no setup fee on any plan. Pricing is shared on request while plans are being finalised; the pricing page explains how usage is counted.
Yes. Phone calls can go to several teams with their own transfer hours, and callers hear hold music while your colleague’s phone rings. On website calls, where a transfer is not possible, the agent offers a callback instead.
Run “Check my agent” to find setup mistakes, then add call tests: a caller persona and plain-words checks that are played against your real agent and judged by AI with the transcript lines as proof.
Related to Ravan (Agni) comparisons
Compare Ravan (Agni) with a live Vistrow call.
Test the voice, latency, transcript, and CRM-ready outcome before you decide.
- No signup needed
- 5 free calls
- 130+ languages